Unable to open document with OnlyOffice

[43NR1QV3]

First of all, congratulations for this app.

I followed the Docker Installation, with Nginx and OnlyOffice in proxied mode, but I tried to view or edit a file, and I get an error that is evident only by this dashboard notification::

Unable to open document
Check the settings

In the dashboard, I gave all possible permissions to my user. I put my domain in nginx.conf > server_name. Is there anything else to set up due to the domain? When accessing through the local IP of my home server, such error remains.

App's logs when I try to view or edit any file:

sync-in        | [2025-10-02 19:38:18] INFO (58): [HTTP] <USER> GET /api/app/notifications (HTTP/1.1 200) 172.16.XX.X (2 bytes in 31ms) Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 | req-o
sync-in        | [2025-10-02 19:38:20] INFO (57): [HTTP] <USER> HEAD /api/app/spaces/operation/files/personal/New%20document.txt (HTTP/1.1 304) 172.16.XX.X ( bytes in 41ms) Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 | req-l
sync-in        | [2025-10-02 19:38:20] INFO (57): [HTTP] <USER> GET /api/app/spaces/onlyoffice/settings/files/personal/New%20document.txt?mode=edit (HTTP/1.1 200) 172.16.XX.X (23601 bytes in 81ms) Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 | req-m
sync-in        | [2025-10-02 19:38:20] INFO (58): [HTTP] <USER> GET /api/app/spaces/onlyoffice/status (HTTP/1.1 200) 172.16.XX.X (16 bytes in 16ms) Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 | req-p
sync-in        | [2025-10-02 19:38:21] INFO (58): [HTTP] <USER> GET /api/app/spaces/onlyoffice/settings/files/personal/New%20document.txt?mode=edit (HTTP/1.1 200) 172.16.XX.X (23601 bytes in 94ms) Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 | req-q
sync-in        | [2025-10-02 19:38:25] INFO (57): [HTTP] <USER> GET /api/app/spaces/onlyoffice/settings/files/personal/New%20document.txt?mode=view (HTTP/1.1 200) 172.16.XX.X (23605 bytes in 97ms) Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 | req-n

OnlyOffice's last logs:

onlyoffice  | [2025-10-02T18:13:50.278] [WARN] [localhost] [docId] [userId] nodeJS - notifyLicenseExpiration(): expiration date is not defined
onlyoffice  | [2025-10-02T18:13:50.648] [WARN] [localhost] [docId] [userId] nodeJS - Express server listening on port 8000 in production-linux mode. Version: 9.0.4. Build: 50
onlyoffice  | [2025-10-02T18:33:14.881] [WARN] [localhost] [docId] [userId] nodeJS - Express server starting...
onlyoffice  | [2025-10-02T18:33:14.921] [WARN] [localhost] [docId] [userId] nodeJS - notifyLicenseExpiration(): expiration date is not defined
onlyoffice  | [2025-10-02T18:33:14.924] [WARN] [localhost] [docId] [userId] nodeJS - notifyLicenseExpiration(): expiration date is not defined
onlyoffice  | [2025-10-02T18:33:15.397] [WARN] [localhost] [docId] [userId] nodeJS - Express server listening on port 8000 in production-linux mode. Version: 9.0.4. Build: 50
onlyoffice  | [2025-10-02T18:35:51.625] [WARN] [localhost] [docId] [userId] nodeJS - Express server starting...
onlyoffice  | [2025-10-02T18:35:51.680] [WARN] [localhost] [docId] [userId] nodeJS - notifyLicenseExpiration(): expiration date is not defined
onlyoffice  | [2025-10-02T18:35:51.685] [WARN] [localhost] [docId] [userId] nodeJS - notifyLicenseExpiration(): expiration date is not defined
onlyoffice  | [2025-10-02T18:35:52.048] [WARN] [localhost] [docId] [userId] nodeJS - Express server listening on port 8000 in production-linux mode. Version: 9.0.4. Build: 50